202 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



spades of ThalasBometridae and ('haritometridaewiththoIIBrBeries4(3+4) showing 

 not the slightest resemblance to any species <>f Himerometra, which would fall in Car- 

 penter's Saoignyi group. 



In 189") Prof. Rene Koehler recorded and gave notes upon a specimen, identified 

 as Ant, i/. >n cni^s'i spina, from the Sunda Islands. 



In my revision of the genus Antedon published in 1907, I placed crassipinna and 

 kraepelini under the new genus Himerometra, of which the former was made the 

 genotype. 1 was unable to place Bell's inopinata on the basis of Bell's description. 



In a revision of the crinoid genus Comatida published on February 29, 1908, I 

 placed Carpenter's Aetinometra robustipinna in the genus Comaster. 



In a paper published on August 25, 1908, I said of Antedon inopinata that it was 

 described in Dr. P. H. Carpenter's Granulifera group, but it evidently belongs to the 



friii group; I remarked further that the species is not recognizable from the 

 description. 



In another revision of the species of Comasteridae published on October 30, 190S, 

 Ad'inoiidtra robustipinna was placed in the genus Phanogenia. 



On December '-'3, 1908, I briefly diagnosed a new species from Albatross station 

 5165 in the Philippines which I called Himerometra robustipinna. 



1 laving in 1910 examined at Leyden the type specimen of Carpenter's Aetinometra 

 robustipinna, I said in 1911, under the heading Himerometra sp., that this specimen 

 proves to be an example of a typical species of Himerometra, and appears to represent 

 the species, common at Singapore, to which I had referred (in 1909) as Himerometra 

 crassipinna (in reality H. martensi), but that the identification cannot be considered 

 certain because of the absence of the cirri and of most of the pinnule tips. 



In 1912, having examined the type specimen of Hartlaub's Antedon kraepelini 

 at Hamburg in 1910, I said, under the heading Himerometra sp., that this appears to 

 be a small specimen of Himerometra robustipinna (of A. H. Clark, 1908) with which it 

 agrees in the absence of a thickening or eversion of the distal edges of the segments 

 of the enlarged proximal pinnules, but the lack of pinnule tips and of the cirri prevent 

 accurate determination. 



In my monograph on the crinoids of the Indian Ocean published in 1912, having 

 found that Carpenter's Aetinometra robustipinna is in reality a species of Himerometra, 

 I renamod the species described by myself in 1908 as Himerometra robustipinna, 

 calling it Himerometra pulcher. I gave Himerometra inopinata as a good species and 

 included a description of it drawn up from the type specimen, which I had examined 

 in the British Museum in 1910. Aetinometra robustipinna of Carpenter I placed as 

 a doubtful synonym under H. crassipinna, and I also discussed it under the heading 

 Himerometra, sp. Himerometra kraepelini was given as a valid species without 

 comment. 



At this time the genus Himerometra was in a chaotic condition, so a detailed revi- 

 sion of the included forms was undertaken, which was published on November 25, 

 1913. In this revision Himerometra robustipinna (P. H. Carpenter) was considered 

 as including Aetinometra robustipinna P. II. Carpenter, 1881; Antedon kraepelini 

 Hartkub, 1890; Antedon crassipinna Hartlaub, 1890 (except the specimen from 

 Cochinchina, which is referred to H. magnipinna); Antedon inopinata Bell, 1894; 



